/*
 * Copyright 2012 Marsrutai.lt
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package lt.marsrutai.mobile.android.widget;

import android.content.Context;
import android.graphics.Rect;
import android.text.TextUtils.TruncateAt;
import android.util.AttributeSet;
import android.widget.TextView;

/**
 * Always focused TextView.
 *
 * Original TextView is scrolled only when it is focused. This class makes TextView always focused, thus making it
 * scroll the containing text if it is longer than the View itself.
 *
 * Might break drawables which are dependent on focus state.
 *
 * Courtesy of:
 * http://stackoverflow.com/questions/1827751/is-there-a-way-to-make-ellipsize-marquee-always-scroll
 *
 * @author Martynas
 *
 */
public class ScrollingTextView extends TextView {

    public ScrollingTextView(Context context) {
        super(context);
        init();
    }

    public ScrollingTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    public ScrollingTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public void init() {
        setEllipsize(TruncateAt.MARQUEE);
        setSingleLine();
    }

    @Override
    protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
        if (focused)
            super.onFocusChanged(focused, direction, previouslyFocusedRect);
    }

    @Override
    public void onWindowFocusChanged(boolean focused) {
        if (focused)
            super.onWindowFocusChanged(focused);
    }

    @Override
    public boolean isFocused() {
        return true;
    }
}
